Remoción de hidróxido de calcio en conductos radiculares a través de activación sónica y ultrasónica. In vitro.

Abstract

Calcium hydroxide (CAOH2) is an intracanal medicament that has antimicrobial, reparative properties and can be used for prolonged periods of time, but it must be properly removed before completing the treatment. One of the most popular methods for its removal is the use of irrigators in combination with rotatory instruments and/or manual technique. Objective: To evaluate the most effective removal technique of calcium hydroxide within the root canal system. Materials and Methods: A cross-sectional descriptive and experimental in vitro study was carried out in 68 molars where calcium hydroxide was placed and divided into 8 groups (n = 64); 4 of ultrasonic activation with aqueous and viscous vehicles, 4 of sonic activation with aqueous and viscous vehicles and two control groups (n = 2, n=2) of manual irrigation with aqueous and viscous vehicle; for its elimination an irrigation protocol was used. Results: The PUI technique had better results with 48% removal in CL, 52% in ML and 0% in AL. During the SA, the CT was 39%, with 30% in the ML and 31% for the AL. For the CT technique, it was 34% in CL, 33% in ML, and 33% in AL. Conclusions: There are many techniques that allow lower percentages of calcium hydroxide residues within the root canal such as PUI with better results than sonic, but none that removes it entirety.